A:Answer Hello Rosco,
Thanks for the question on the LifeStyle 650 system. Just so that you know, the amount of sound coming from the rear speakers can vary due to the source material being played. Music and most TV shows typically do not have sounds to play through the rear speakers of a surround sound system. Movies and video games typically do have sounds to play through the rear speakers but it will not be constant. You can expect a varying level of audio from the rear speakers depending on what is being played. If you're aware of and have tried content where you know there should be sound from the rear speakers, please try to reset your system following this process here: https://bose.life/2GvOrNT
If you need our assitance, feel free to reach out to us by clicking here: https://bose.life/2v8YQJ0
Thanks again,
Mohsin - Bose Support